MgF2 single crystal is a birefrigent material with particular properties. It has a high resistance to mechanical and thermal shock and radiation. With wide transparent range and high transmissibility, it becomes a popular choice for VUV and excimer laser windows, polarizers, prisms, lenses, wedges, windows, and other optical components
Specifications:
| Surface Quality: |
better than 40/20 scratch/dig |
| Parallelism: |
< 10 arc sec |
| Optical Axis Orientation: |
+/-0.2deg |
| Flatness: |
< l/8 @632.8nm |
| Wavefront Distortion: |
<l /4@632.8nm |
| Coating: |
Coating upon Request |
Physical and Optical Properties
| Transparency Range : |
130-7000nm |
| Density : |
3.18 g /cm 3 |
| Melting point |
1255 °C |
| Mohs Hardness |
6 |
| Thermal Expansion Coefficients |
parallel c-axis: 10.86 - 14.54
vertical c-axis: 6.23 - 9.25 |
| Specific heat capacity |
920 J kg -1 K -1 |
| Absorption coefficient (cm -1 ) |
0.07 at 0.2 µm; 0.02 at 5.0 µm | |
